[grey-wak, -wak-uh] /ˈgreɪˌwæk, -ˌwæk ə/
Geology. a dark-gray coarse-grained wacke.
Any of various dark gray, coarse-grained sandstones that contain abundant feldspar and rock fragments and often have a clay-rich matrix. Graywackes are thought to originate in environments where erosion, transportation, and deposition happen so quickly that minerals and rock fragments do not have sufficient time to break down into finer constituents.
noun See gray water graywater (grā’wô’tər) Wastewater from baths, bathroom sinks, and washing machines that does not contain body or food wastes. Graywater can be recycled especially for use in gardening or for flushing toilets. Compare blackwater.
noun 1. dirty water from sinks, showers, bathtubs, washing machines, and the like, that can be recycled, as for use in flushing toilets. noun waste water from bathroom, kitchen, and laundry activities, esp. as it may be recycled for toilet and outside water uses; also written graywater
[grey-weth-er] /ˈgreɪˌwɛð ər/ noun 1. .
noun 1. a grayish-black whalebone whale, Eschrichtius robustus, of the North Pacific, growing to a length of 50 feet (15.2 meters): now rare.